libpipecolors/libpipecolors.cpp

137 lines
3.7 KiB
C++

/*
* libpipecolors: linux color code library
*
* Authors:
* Eric Wheeler <eric@ericwheeler.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <iostream>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <string>
#include <map>
#include <regex>
//#include "libpipecolors.h"
namespace pipecolors {
#define C_DEFAULT 0
#define C_BOLD 1
#define C_ITALIC 3
#define C_UNDERLINE 4
#define C_INVERT 7
#define C_B0 "\x1b[1m"
#define C_B1 "\x1b[0m"
#define C_FG_BLACK "\x1b[0;30m"
#define C_FG_RED "\x1b[0;31m"
#define C_FG_GREEN "\x1b[0;32m"
#define C_FG_YELLOW "\x1b[0;33m"
#define C_FG_BLUE "\x1b[0;34m"
#define C_FG_MAGENTA "\x1b[0;35m"
#define C_FG_CYAN "\x1b[0;36m"
#define C_FG_GRAY "\x1b[0;37m"
#define C_FG_DEFAULT "\x1b[0;39m"
#define C_FG_GRAY_D "\x1b[0;90m"
#define C_FG_RED_L "\x1b[0;91m"
#define C_FG_GREEN_L "\x1b[0;92m"
#define C_FG_YELLOW_L "\x1b[0;93m"
#define C_FG_BLUE_L "\x1b[0;94m"
#define C_FG_MAGENTA_L "\x1b[0;95m"
#define C_FG_CYAN_L "\x1b[0;96m"
#define C_FG_WHITE "\x1b[0;97m"
#define C_BG_NONE ""
#define C_BG_RED "\x1b[1;41m"
#define C_BG_GREEN "\x1b[1;42m"
#define C_BG_BLUE "\x1b[1;44m"
#define C_BG_DEFAULT "\x1b[1;49m"
std::map<std::string, std::string> getColors() {
std::map<std::string, std::string> colors;
colors["|00"] = C_FG_BLACK;
colors["|01"] = C_FG_BLUE;
colors["|02"] = C_FG_GREEN;
colors["|03"] = C_FG_CYAN;
colors["|04"] = C_FG_RED;
colors["|05"] = C_FG_MAGENTA;
colors["|06"] = C_FG_YELLOW;
colors["|07"] = C_FG_GRAY;
colors["|08"] = C_FG_GRAY_D;
colors["|09"] = C_FG_BLUE_L;
colors["|10"] = C_FG_GREEN_L;
colors["|11"] = C_FG_CYAN_L;
colors["|12"] = C_FG_RED_L;
colors["|13"] = C_FG_MAGENTA_L;
colors["|14"] = C_FG_YELLOW_L;
colors["|15"] = C_FG_WHITE;
colors["|16"] = C_BG_DEFAULT; // C_BG_BLACK
colors["|17"] = C_BG_BLUE;
colors["|18"] = C_BG_GREEN;
colors["|19"] = C_BG_BLUE; // C_BG_CYAN
colors["|20"] = C_BG_RED;
colors["|21"] = C_BG_RED; // C_BG_MAGENTA
colors["|22"] = C_FG_WHITE; //C_BG_BROWN
colors["|23"] = C_BG_DEFAULT; // C_BG_WHITE
colors["|30"] = C_B0; //Bold OFF
colors["|31"] = C_B1; // Bold ON
return colors;
}
bool has_colors(void) {
return isatty(fileno(stdout));
}
void pcprintf( const char * fmt, ... ) {
char *buffer;
std::map<std::string, std::string> colors;
std::size_t index;
std::smatch matches;
va_list args;
va_start(args, fmt);
if(int size = vasprintf(&buffer, fmt, args) == -1) {
free(buffer);
exit(EXIT_FAILURE);
}
std::string text(buffer), s(buffer);
va_end(args);
free(buffer);
std::regex reg ("(\\|\\d\\d)", std::regex_constants::ECMAScript | std::regex_constants::nosubs);
colors = getColors();
while (std::regex_search (text,matches,reg)) {
for (auto x:matches) {
while ((index = s.find(x)) != std::string::npos)
s.replace(index, x.length(), colors[x]);
}
text = matches.suffix().str();
}
std::cout << s;
}
}